Spacer block



FIG. 1 is a rear upper perspective view of a spacer block;

FIG. 2 is a front view of a spacer block;

FIG. 3 is a right side view of a spacer block;

FIG. 4 is a left side view of a spacer block;

FIG. 5 is a rear view of a spacer block;

FIG. 6 is a plan view of a spacer block;

FIG. 7 is a underneath view of a spacer block; and,

FIG. 8 is a front upper perspective view of a spacer block. 

CLAIM The ornamental design for a spacer block, as shown and described. 